Metal window construction.



4 G. H. FORSYTH. METAL WINDOW CONSTRUCTION.

2 APPLICATION FILED 0012211908.

2 suhms-suam 1.

Patented Oct. 6, 1914.

ll lllllillnlllal 11.] l l 1| G. H.. PORSYTH. METAL WINDOW CONSTRUCTION. APPLICATION IILBD 001. 21. 1908.

Patented Oct. 6, 1914.

2 SHEETS-SHEBT 2.

GEORGE E. roBsY'rH, or omcaso, ILLINOIS.

. METAL WINDOW CONSTRUCTION.

Specification of Letters Patent.

Patented Uct. 6, 1914.

Application filed October 27,1908. Serial No. 459,775.

proved mechanism or automatically main-' taining a snug fit of the sash stiles in their guides, to automatically maintain the sash in various raised positions, to facllitate the work and cheapen the cost of manufacture, to facilitate the application-of the glazing, and to adapt the sash to variations m the longitudinal and transverse inclinations of the sills.

' The invention will be readily understood when considered in connection with the accompanying drawings, in which,

. Figure l is an elevational v ew of one side of a sash and sash-guide with the stop nearest the observer removed. Fig. 2 is a perspective elevation of the cooperating adusting strips through which a sun fit of the sash is maintained and where y also the sash is automatically maintained in raised position. Figs. 3, 4, 5 and 6 are cross-sectional details on an enlarged scale on the lines 3-3, 4-4, 55 and 66, respectively, of Fig. 1, looking downwardly. Fig. 7 is a cross-sectional detail, enlarged, through the top bar of the sa'sh. Fig. 8 1s a view similar to Fig. 7 through the lower .40

bar of the sash.

Referring to the drawings, 10 designates the usual post or upright of the window casing to which are secured the usualinner and c-uter stops lland 1'2 formin a guide-groove for the stile of the sash. Thislatter, as herein shown, is'made as follows: In making up the stile I take a pair of sheet metal strips that are bent longitudinally to the substantially duplicate cross-sectional form shown in Figs. 3 to 6, inclusive, each member forming an outer side wall 13 of the stile, a glazing head 13, and the side walls 13 of a rentrant groove in the outer edge of the stile, the meeting margins of the strips being overlapped as shown, to form transverse walls of double thickness for the botand also enter and fit the rentrant groove in the outer edge of the stile; and the side walls-13, together with the mar ins of the clamp-strip 14 are securely united by transverse pins 15 that are surrounded by spacing sleeves 16, which latter are somewhat less in length than the distance between the inner sides of the walls 13, thereby permitting the latter to be drawn together to cause the beads 13' to snugly gri the glass indicated at 17, a rubber or 0t er cushioning strip 18 being fitted to the edge of the glass. To reduce wear on the outer side wall of the stile, I preferably utilize a wear-stri 19 which may be secured thereto by s ort studs 20 projecting at intervals into a ertures formed through the members 13 an 14.

Referring now to the adjustingand looking devices for the sash, which are best shown in Figs. 1 and 2, 21. designates a vertically disposed angle-strip which slidably engages one corner of the guide-groove (F igs. 3 to 6 and at-its lower end is secured to the ash stile by a pin 21 engaging a transverse'slot 13 in the side of the sashstile (Fig. 6). The base wall of this anglest'rip is prhyided at intervals with' PIO18C- tions 22 having oppositely beveled outer faces adapted to engage correspondingly sha )ed depressions 23 formed in the bottom wal of the guide-groove. Slidably fitting the diagonally o posite corner of the reentrant groove 0 the sash is a cotiperating angle strip 24. The angle-strips 21 and 24 are equipped at intervals with blocks so and 26, respectively, that have similarly inclined proximate cam faces 25 and 26 which operate, under an upward movement of the strip 24 relatively to the strip 21 to force said strips apart; and this action is normall y maintained by means of compression springs 27 interposed between the upper face of the block 25 of one pair of blocks and the lower face of the block 26 of the next upper pair of blocks, the springs lying obliquely between said blocks. These springs being applied under compression, it will be evident that their expansive efiort tends to move the, angle-strips longitudinally in op- -posite directions, and, the strip 21' being held from downward movement relatively tothe sash by the pin 21, the cooperative effect of the inclined surfaces of the blocks is toiorce the strip 21 into locking engage- 'to their coiiperating sockets 23. This is accomplished, in the construction shown, by

means of a thumb lever 28 that is pivoted on a pin 29 to that wall of the angle-strip 21 which is parallel to the plane of the sash and has an elongated slot 30 engaging a pin 31 (Fig. 2) secured to and projecting outwardly from the cooperating angle-strip 24 through a vertical slot l3 in the wall of the re'entrant groove. This lever 28 projects through the inner glazing head 13, which is slotted for that urpose, and also through a=plate 32 that is secured to the beads of the stile and lower sash-bar as by screws 33, and carries a stationary fingerpiece 34. By clamping the lock members, that is to say the lever 28 and finger-piece 34 together, a downward movement of the angle-bar 24 is effected in opposition to the springs 27, which releases the locking effect of the projl etions 22 in 'the sockets 23,

and permits said angle-bars to be raised with the sash. Upon the release of the lever 28, the projections 22 snap into the next series of sockets which they meet and automatically lock the sash in its raised position. The sash is reinforced at its corners by an L-shaped reinforcement 35 of channelshaped cross-section, clearly, shown in Fig. 5, fitting within the meeting ends of the hollow stile and bar. Where one side of the stile is, as shown, made sbmewhat wider than the other, an auxiliary filling strip 36 is employed to avoid the ne gessity of a spe cial construction of channel reinforcement, and this latter may and preferably docs extend within the head 13', also reinforcing the latter. The filling member 36 is made slightly narrower than the space in which it is inserted, in order to not interfere with the compressive action of. the clamping member 14 on the stile. To reinforce the inner half of the hollow stile, which is necessarily cut away transversely at intervals in.the region of the cam-blocks 25 to accommodate the latter,I insert an internally bent metal sheathing strip 37; and to further reinforce the head 13* where slotted vfor the passage of the lever 28, I insert therein a block 38 which is, of course,-slotted to ac.- commodate the lever 28, and which also forms an anchorage for the screws 33 that secure the plate 32 in place. In addition to the fastening screws 33, and to relieve the latter of strains, the lift 32 is provided with inwardly projecting lugs 39 which pass through the bead and into the reinforcing parts 37 and 38 of the stile.

My improved construction also provides a means for'inserting the' glass 17 through one edge of the sash, preferably the top edge.

In this case thetransve'rse overlapping margins of the bent metal halves ofthe-sash member are cut away, so that the glass may be entered between them through the re-' entrant groove in the outer edge of the sashmember, as clearly shown in Fig. 7. After the glass has been inserted, the clamp 14 is applied, its inner transverse member closing the opening through which the glass has been inserted, and its fastening pm 15 securely uniting the opposite sides of. the sash member at the corners beyondthe ends of the opening. I

In Fig. 8 I show a novel cushioning memher for the lower edge of the sash, the same eonsisting'of .'a strip 40 of yieldin material,

preferably rubber, which preferably isformed with a transversely concave lower face 41 which adapts the same to a close fit on sills having different de ees of transverse inclination, and also a apts the cushion to variations from a straight line which are sometimes found in the longitudinal dimension of the sill, owing to thecamber of the ear-body. The cushion is secured to the lower edge of the sash-bar by means of an integral upwardly projecting tongue 42 which lies within the reentrant groove of the sash-bar and is preferably embraced by a cham'iel-shaped metal strip 43 having inwardly turned margins 44 which bite into the neck of the tongue and securely grip the latter. The upper corners of the strip 453 are rounded, as shown at 43, opposite the corners or the reiintr'ant groove in order to 'avoid any interference with-the transverse compressibility of the sash-bar.

In view of the fact that the cam blocks 23 carried by the angle-strip 21 project partially across the region of the inner halt-of the stile, the latter is suitably cutaway at points opposite the blocks 25 for a sufiicient extent to avoid interference with the latter in the operation of the parts, as will be evident from Fig. 6.

I claim:

1. The combination with a sash and sashguide, of a pair of adjusting strips carried by the sash, and meanstending to separate said strips in a direction obliquev to the plane of the sash.

2. The combination with a sash and sash guide, of a pair of adjusting strips disposed therebetween, one engaging the sash and the other the guide, sai adjusting strips relatively movableone to the other in a direction oblique to the plane of the sash, and spring means acting to separate said strips, substantially as described.

3. The combination with a sash and sash guide, of a pair of adjusting strips disposed therebetweeil, one engaging the sash and the other the guide, said adjusting strips relatively movable one to the other in a direction oblique to the plane of the sash, spring means acting'to separate said strips, and manually operable-means to neutralize the abtion of the separating means, substantially as described.

4. The combination with a sash and sash guide, of a pair of adjusting strips carried by the sash and one engaging the sash and the other the guide, and spring means tending to separate said strips in a direction oblique to the plane of the sash'and guide.

5. The combination with a sash and sash guide of a pair of adjusting strips carried by the sash and movable bodily relative thereto, one of the strips operatin against the sash and the other against the guide, spring means tending to separate said stri s in a direction oblique to the plane of the sash and guide.

6. The combination with a sash and sash guide, of a pair of adjusting strips carried by the sash and movable bodily relative thereto, one of the strips bearing against the sash and the other against the guide, spring means tending to separate said strips in a direction oblique to the plane of the sash and guide, and manually operable means to neutralize the action of the sprin means.

7. The combination With a sas and sash guide, of a pair of adjusting strips, one engaging the sash and the other the guide, the two strips having co-acting Wedge members tending to separate the strips in a line oblique to the plane of the sash and guide, and a spring acting upon the Wedge membe'rs.

8. The combination with a sash and a sash guide, of a pair of adjusting strips, one engaging the sash and the other the guide, the two strips having co-acting Wedge members tending to separate the strips in a line oblique to the plane of the sash and guide, a spring acting upon the wedge members, and manually operable means to neutralize the action of the spring.

9. The combination with a sash and sash guide, of a pair of adjusting strips, one engaging the sash and the other the guide, the two strips having co-acting Wedge members tending to separate the strips in av line oblique to the plane of the sash and guide, a spring acting upon the w ge members, 00- acting projections and recesses formed on the opposed faces of the guide and one of the strips, and manually operable means to neutralize the action of the separating means whereby to 'efi'ect the disengagement of the projections and recesses.

GEORGE H. FORSYTH.

lVitnesses:

SAMUEL N. Pom), FREDERICK O. Goonwm. 

